Home / 831,581.36-1,147,583.92-449,608.13

Finding the Fourth Proportional to 831,581.36, 1,147,583.92 and 449,608.13

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Solution

The fourth proportional to 831,581.36, 1,147,583.92 and 449,608.13 is: 620,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,581.36 : 1,147,583.92 = 449,608.13 : x
  2. Step 2: Convert to fraction form
    831,581.36/1,147,583.92 = 449,608.13/x
  3. Step 3: Cross multiply
    831,581.36x = 1,147,583.92 × 449,608.13
  4. Step 4: Simplify right side
    831,581.36x = 515,963,062,034.21
  5. Step 5: Solve for x
    x = 515,963,062,034.21/831,581.36
  6. Step 6: Final answer
    x = 620,460.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.